7:30 p.m., F5, Roger Mills, Dewey counties; western Roger Mills County, near Leedey.
May 25, 1955
9:26 p.m., F5, Noble and Kay counties, Sumner County in Kansas; eight miles west of Marland, east of Tonkawa, Blackwell, southeast of South Haven, Kan.
May 25, 1955
10 p.m., F5, Kay County in Oklahoma, Sumner and Cowley counties in Kansas; south of Ashton, Kan., Udall, Kan., Atlanta, Kan.
May 5, 1960
5 p.m., F5, Pottawatomie, Lincoln, Okfuskee, Creek counties; south of Shawnee, between Paden and Prague, Iron Post, Sapulpa, northeast of Sapulpa.
March 26, 1976
3:28 p.m., F5, Le Flore County; four miles east of Bokoshe, Spiro.
April 2, 1982
3:50 p.m., F5, Choctaw and McCurtain counties; south of Speer, near Messer, Hugo Lake, south edge of Broken Bow, four miles southeast of Eagleton.
May 3, 1999
5:26 p.m., F5, Grady, McClain, Cleveland, Oklahoma counties; two miles south, southwest of Amber, far north Newcastle, southwest Oklahoma City, north Moore, south Del City, west Midwest City.
May 24, 2011
3:50 p.m., EF5, (First EF5 in Oklahoma after scale change) Canadian, Kingfisher, Logan counties; four miles west, southwest of Hinton, near Calumet, near El Reno, near Piedmont, near Cashion, four miles northeast of Guthrie.
May 20, 2013
2:45 p.m., EF5, Newcastle, Oklahoma City, Moore; 4.4 miles west of Newcastle; 4.8 miles east of Moore.
SOURCE: National Weather Service, Norman Forecast Office
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